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Page 12
Troubleshooting
Error Codes
Number
Cause
Operation
Indicator
Timer
Indicator
PRE-DEF
Indicator
Alarm
Indicator
Error
Code
1
In-outdoor unit communication
checking channel is abnormal
Quick-flash
E 1
2 Room temperature sensor
checking channel is abnormal
Quick-flash
E2
3 Evaporator sensor malfunction Quick-flash
E3
4 Condenser sensor malfunction
E4
5 Water pump temperature sensor
E5
6 Outdoor malfunction Quick-flash Quick-flash
E6
7 EEPROM malfunction Quick-flash Quick-flash
E7
8
Water level alarm malfunction
E8
9 DC motor speed out of control Quick-flash
10 Outdoor unit low pressure
malfunction
Quick-flash
Quick-flash
11
Quick-flash
Refrigerant leak detection
system malfunction
EC
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
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